Numerical modelling and analysis for elastic wave equations in the frame of the couple stress theory
文献类型：期刊论文
| 作者 | Wang ZhiYang2,3,4; Li YouMing1,2,3; Bai WenLei2,3,4 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 64期号:5页码:1721-1732 |
| 关键词 | Asymmetric seismology The couple stress theory Elastic wave equation Numerical modelling |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg202100185 |
| 英文摘要 | In the frame of conventional seismology, geophysicists have made a great contribution to the development of our society by developing numerous seismic exploration technologies. However, the current technologies still exist some hurdles to be overcome. The field data acquired in Dingxing, Hebei provided by the joint research group of High-Speed Rail Seismology show that there existing a large amount of rotational ground-motions. In the conventional continuum mechanics theory, the media are modeled to be a continuum mass without internal structures, and the elastic wave equation based on the conventional continuum mechanics theory do not contain the free term describing the rotational ground-motions essentially. As a matter of fact, no media are ideal continuum, whether natural or man-made media, there are complex internal structural characteristics. Generalized continuum mechanics is more suitable for describing situations with more complex internal structures. Therefore, we try to apply the generalized continuum mechanics theory to derive the elastic wave equation based on the couple stress theory and compare its mathematical expression and synthetic seismograms with that of the conventional elastic wave equation. Study and explore the theoretical significance and application value of the asymmetric elastic wave equation that we derived. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000647152100021 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101218]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Li YouMing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China 2.Joint Res Grp High Speed Rail Seismol, Beijing 100029, Peoples R China 3.Joint Res Grp Asymmetr Elast Wave Equat, Beijing 100029, Peoples R China 4.Beijing Univ Chem Technol, Coll Informat Sci & Technol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang ZhiYang,Li YouMing,Bai WenLei. Numerical modelling and analysis for elastic wave equations in the frame of the couple stress theory[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2021,64(5):1721-1732. |
| APA | Wang ZhiYang,Li YouMing,&Bai WenLei.(2021).Numerical modelling and analysis for elastic wave equations in the frame of the couple stress theory.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,64(5),1721-1732. |
| MLA | Wang ZhiYang,et al."Numerical modelling and analysis for elastic wave equations in the frame of the couple stress theory".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 64.5(2021):1721-1732. |
入库方式： OAI收割
来源：地质与地球物理研究所
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